It's b. 4x-12
Just put f into g
the answer is D you get this from using simultaneous equations the working out is shown in the photo. ignore the stuff at the top of the page
Answer:
m(angle1)=79-39=40
m(angle2)=79+61=140
Step-by-step explanation:
m(angle1)+m(angle2)=180
x-39+x+61=180
2x=158
x=79
m(angle1)=79-39=40
m(angle2)=79+61=140
Answer:
percentage error = 12.28%
Step-by-step explanation:
5 x 0.14 = 0.7
5 x 1.14 = 5.7
as increase is not the same as error decrease.
We use the same numbers 12.28% = 0.1228.
5.7 x 0.1228 = 0.69996 = 12.28%
5.7 - 0.69996 = 5.00004 foot. As decrease.
And find it is correct.
His error therefore was 12.28% out.
As we work the first numbers 5.7 and can only x by a number to see 5ft
We take 5.7 x 0.1228 and find 0.69996 when taken from 5.7 ft. is unmistakably 5 foot. (5.00004) ft.
